Portion of a backface of a golf club head



FIG. 1 is a perspective view of a portion of a backface of a golf club head of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a perspective view of a second embodiment of the portion of a backface of a golf club head of the present invention;

FIG. 5 is a front view of the second embodiment of the portion of a backface of a golf club head of the present invention; and,

FIG. 6 is a bottom view of the second embodiment of the golf club head of the present invention.

The broken line showing of the rear, bottom and left side of a golf club head is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a backface of a golf club head, as shown and described. 